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Komatsu PC2000-8 - Page 371

Komatsu PC2000-8
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MAINTENANCE MAINTENANCE PROCEDURE
4-53
4. Remove plug (6) on the bottom of the check valve block (5)
and loosen air bleeding plug (7) on the side approximately
by 1 turn.
5. Start the engine and run it at low idling for 2-3 minutes.
6. Screw in drain valve (2) completely as soon as oil free of
white contamination begins to flow out of air bleeding plug
(3) and out of the plug (6) hole.
7. Tighten air bleeding plugs (7) and (3). (Left and right, 2
places)
8. Install plug (6).
9. Finally tighten grease cylinder plug (1). (Left and right, 2
places)
Tightening torque
Air bleeding plug (3),(7),(1): 58.8 to 88.3 Nm (6 to 9 kgm)
Plug (6): 3.9 to 6.9 Nm (0.4 to 0.7 kgm)
Always tighten plug (1) last.
Close all the drain valve and air bleed valves completely.
After bleeding the air, check and adjust the track tension. For details, see “CHECK AND ADJUST TRACK TEN-
SION (4-30)“.

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